From 9482e23878ff84bd554341de9b88d6451eaf80d7 Mon Sep 17 00:00:00 2001
From: Mengyang Li <mayli.he@gmail.com>
Date: Mon, 28 Jan 2019 16:38:09 -0800
Subject: [PATCH] upgrade pip to latest in .travis.yml

---
 .travis.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.travis.yml b/.travis.yml
index 2867bd1..3d0d04c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,7 @@ matrix:
       sudo: true
 before_install:
   # coverage submission packages
+  - pip install -U pip
   - pip install codecov
   - pip install pymongo
 install: